99% of the manga i read is better then the anime of several reasons,like better art,not censured like the anime version,straight to point while animes use tv tricks to make it more exiteing and longer and that usaully make it worse.
These mangas are better than the anime versions:
Berserk
Hunter X Hunter
GTO
Naruto
One Piece
Beck
Gantz
Hellsing
Midori No Hibi
these are my favs mangas who clearly better the anime versions.
The only anime i think its better than the manga version is Initial D cause the car races looks better in anime.